Pacific Scale LIFT-N-WEIGH LNW-6 Manual
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Pacific Scale LIFT-N-WEIGH LNW-6 Manual

Lift truck scale, on/off switch - zero button accumulate-print button front panel calibration overload warning display rs232 interface option
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Summary of Contents for Pacific Scale LIFT-N-WEIGH LNW-6

  • Page 3: Table Of Contents

    LNW-6 Table Of Contents Important Notice................. ii Caution....................iii Introduction & Description ..............1 Principle of Operation Pressure Transducer Digital Indication Power Requirements DC Power Filters ................2 Installation ..................3 Lift Truck Conditions Indicator Installation Hose Installation Installation Diagram ................4 Operation Setup .................

  • Page 4: Important Notice

    LNW-6 Warranty ...................12 Parts List (partial) ................13 Important Notice Your new LNW-6, Serial No.___________, was precalibrated for installation on a ________________ Make _____________ before leaving the factory. Model Note: Unit must be recalibrated after installation on your vehicle. The Unit can be installed on almost any capacity truck from 1000 lbs capacity to 500,000 lbs.

  • Page 5: Caution

    A qualified lift truck technician may find an alternate means to install the scale which is better suited to the situation. Pacific Scale Co., Inc. strongly recommends that when installation procedures are followed which depart from those outlined herein, the safety of personnel and equipment must be accorded primary consideration.

  • Page 6: Principle Of Operation

    On 36V or greater systems, use without the HD LF & VR cannot be guaranteed. Note: If supplied Power falls below 11.5 volts on a regular basis, WIVR may need to be bypassed. Contact Pacific Scale for information. • 1 •...

  • Page 7: Dc Power Filters

    LNW-6 DC Power Filters Pacific Scale Co. builds LNW Indicators for use on a wide variety of equipment and vehicles. Our internal Wide Input Voltage Regulator (WIVR) will work on an input voltage of 12-48 volts DC and has basic power line noise filtering built in.
  • Page 8 LNW-6 accuracy possible, usually approximately +/- 1-2% of the capacity of the truck, the lift truck should be in good mechanical and hydraulic condition. The lifting mechanism must be checked for satisfactory operation: leaks; proper fluid level; the mast slides for worn or bent sections and mast rollers for worn bearings;...

  • Page 9: Indicator Installation

    LNW-6 Indicator Installation Power cord should be plugged in and connected preferably direct to the battery. The LNW-6 has it’s own ON/OFF switch and internal resettable fuse. Note: Unless customer requests it, do not wire to ignition switch. As the LNW units draw minimal power, approx.
  • Page 10 LNW-6 First Stage Cylinder The LIFT-N-Weigh will weigh most accurately in the first stage on a truck with telescoping hoist cylinders. Weighing Height Height that provides for consistent weights. (typically 16” to 20” above ground) To mark weighing height; a. Raise forks to approximately 16” to 24” above ground level. (or determine operators choice of height.) b.
  • Page 11 LNW-6 Working Display and Weighing cycles The LNW-6 normally displays a “working” weight reading, but for accuracy, the LNW- 6 uses a weighing cycle for a more accurate “calculated” weight. This eliminates some of the problems of hydraulic weighing systems. Operation First step - Turn On Scale Scale cycles through its power up display.
  • Page 12 LNW-6 Press to start a weighing cycle. The Scale cycles through a weigh cycle, getting a Calibrated ZERO then showing a working ZERO (displayed value) (continued on next page) • 7 • Manual Version 5 - effective 15 January 2013 pacificscale.com &...
  • Page 13 Zero Total Weights - ACCUM Press to get While showing Press to add Press to start a Weighing cycle weight Calibrated Weight weight to Total and automatically add to Total...

  • Page 14: Single Button Accumulation

    LNW-6 Operation (Continued) Third - Get Weight Lift the load at normal lifting speed to above the weighing mark Lower to the weighing mark Press to start a weighing cycle. The Scale cycles through a weigh cycle, Getting a Calibrated weight (indicated by * l b ) After approximately 20 secs or the scale is unloaded the Display returns to the working (non-precision) display.

  • Page 15: Clearing Totals

    Then the Display returns to the Calibrated weight (indicated by * l After approximately 20 secs or the scale is unloaded the Display returns to the working (non-precision) display. Clearing Totals Remove the load from the forks. While holding the button, press and hold the until the Count shows Zero, to clear Totals.
  • Page 21 LNW-6 Calibration The Lift-N-Weigh is normally setup for and precalibrated to the customer’s supplied lift truck specifications. This is a test bench calibration to the calculated pressure. Because of friction in the lifting mechanism and control valve bleedback, weight errors may exist in the system when installed on the customers equipment.
  • Page 22 LNW-6 Calibration should take less than 30 minutes. Should you have any problems call 1-800-537-1886 ext. 109 Also see www.forkliftscales.us for further information • 8 • Manual Version 5 - effective 15 January 2013 pacificscale.com & forkliftscales.us...

  • Page 24: Basic Setup - User Controls

    LNW-6 Basic Setup - User Controls button allows access Time & Date set menu, Total setpoint, and Load setpoint. After pressing the button, use the buttons to select: To set the Time & Date for use with a printer or other RS232 device, simply press The unit will then display Adjust up and down with the buttons.
  • Page 25 LNW-6 • 9 • Manual Version 5 - effective 15 January 2013 pacificscale.com & forkliftscales.us...
  • Page 27 LNW is installed, the SETUP may need to be done to set the Capacity and associated parameters. Note: The SOL TIME and FILTER values should remain as set. Consult with Pacific Scale if you think you need to change those parameters. 1-800-537-1886 LNW Tech at ext. 109 Step 1 - Determine Capacity Consult the Capacity chart on the opposite page to select the Capacity and Step Size (CTBY) Note the INC steps and CTBY size you wish to use.
  • Page 28 LNW-6 Calibration should take less than 30 minutes. Should you have any problems call 1-800-537-1886 LNW Tech at Ext. 109 Also see www.forkliftscales.us for further information • 10 • Manual Version 5 - effective 15 January 2013 pacificscale.com & forkliftscales.us...

  • Page 30: Troubleshooting

    LNW-6 Trouble Shooting Malfunction Probable Cause Corrective Action Power leads reversed. Indicator does not Connect White to Positive, • Display numbers Connect Black to Negative Power not connected. Connect per instructions Defective Indicator or plug Replace Indicator or plug Blown WIVR Replace WIVR, add power filter if needed.
  • Page 31 LNW-6 ALL THE ACIFIC CALE ERVICE EPARTMENT 1-800-537-1886 LNW Tech at Ext. 109 • 11 • Manual Version 5 - effective 15 January 2013 pacificscale.com & forkliftscales.us...
  • Page 33 Such repairs or replacements shall be performed without charge at Pacific Scale’s service facilities. The defective unit is to be returned to Pacific Scale Co., Inc. prepaid with a description of the problem, after calling and receiving a R...
  • Page 35 LNW-6 Parts List, (partial) Description Part NO. Bezel Frame ..............1 L6-BZ Bezel screws..............4 LC-SZ Hose, ..... 1 LC-HH-72 high pressure synthetic, 6’, 1/4” NPT Male each end Hose Fitting, 360 Deg. swivel ell ........1 LC-PT-FS Main Board ............... 1 L6-MB ON/OFF Power Switch, ....

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